{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "ransom", "arguments": ["price", "time", "attacker", "tool", "place", "damage amount", "victim", "payment method"]}], "input": "Bitcoin has become the popular payment method for ransomware over the last two years , as the digital currency provides cybercriminals with a means of collecting ransoms , while also making it difficult to get the ransom - collectors ' identities , thanks to the level of anonymity it offers ."}
{"ransom": [{"price": "NAN", "time": "the last two years", "attacker": "cybercriminals", "tool": "ransomware", "place": "NAN", "damage amount": "NAN", "victim": "NAN", "payment method": ["the digital currency", "Bitcoin"]}]}